I mean, some folks act like changing a character's hair color is a war crime. My trick is to just not dive into those comment sections at all, it's like avoiding a swamp. Going in just knowing the basic plot from a trailer is the way to go, lets you actually enjoy the popcorn.
My cousin Mark used to waste hours online fighting about small movie details. He just stopped clicking on any fan debates or news articles before seeing a film. Now he goes in fresh and actually has fun watching.
I saw your thing about tiny movie changes. My friend Mike used to read every online argument about Marvel stuff, like why a costume was the wrong shade of blue. He finally just stopped clicking on those posts. He only watches the trailers now and goes in cold. Says he has way more fun at the movies.
Wait, people actually fight over the exact shade of blue in a costume? That's wild. Susan's cousin Mark had the right idea to just quit that noise cold turkey. Going in blind is the only way to not get annoyed by stuff that doesn't matter.